Attack damage

Attack damage (or AD) directly increases the physical damage of a unit's autoattack and also improves the damage some championabilities too. Every champion starts with some base attack damage that increases each level. Additionally, several items and champion abilities, as well as spells, buffs, runes and masteries grant bonus attack damage. The champion's total attack damage is the base attack damage plus the bonus attack damage.

This statistic stacks additively in most circumstances. When there are percentile attack damage bonuses, they are first added together if there are several sources and then they multiply the total attack damage of the champion.

Attack Damage has a theoretical gold value of 36 gold per unit. This means that B. F. Sword and Pickaxe are the most efficient AD core items, with a gold/AD ratio of 31 and 35 respectively. The costs of these stats are always offset by increased final costs of their upgraded items, so The Bloodthirster and Infinity Edge still break even at 36 goldper 1 AD.

SSword of the Occult: +10 attack damage. Unique Passive: Grants +5 attack damage per stack and 5 stacks upon first purchase. Grants 2 stacks for a kill or 1 stack for an assist (max 20 stacks). Half of the stacks are lost upon death. At 20 stacks, grants +20% bonus attack speed. 1400 gold.

SThe Bloodthirster: +80 attack damage. Unique Passive: +20% life steal. Unique Passive: Your basic attacks can now overheal you. Excess life is stored as a shield that can block 50-350 damage, based on champion level. This shield decays slowly if you haven't dealt or taken damage in the last 25 seconds. 3500 gold.

Nocturne'sDuskbringer grants him 15 / 25 / 35 / 45 / 55 attack damage as long as he is on the trail created by the ability.

Poppy'sParagon of Demacia increases her attack damage by 1.5 / 2 / 2.5 / 3 / 3.5 when she is hit by an attack or hits an enemy. This buff lasts for 5 seconds and stacks up to 10 times. She can activate this ability to gain max stacks.

Neutral buffs

The Hand of Baron buff grants up to 40 attack power and ability power (scaling with game time) for 3 minutes.

Decreasing attack damage

Champion's abilities

Note: Only the attack damage reduction effect of these abilities is shown here, to read more information on each of these abilities, follow the link on each of them. Effects that reduces damage is not the same as decreasing a champion's attack damage.